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Volumn , Issue 20, 2007, Pages 3209-3213

Polymer-incarcerated palladium with active phosphine as recoverable and reusable Pd catalyst for the amination of aryl chlorides

Author keywords

Aminations; Aryl chlorides; Heterogeneous catalysis; Palladium; Polymer

Indexed keywords

AMINE; CHLORIDE; LIGAND; PALLADIUM; PHOSPHINE; POLYMER;

EID: 37749042148     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-2007-1000816     Document Type: Article
Times cited : (18)

References (53)
  • 24
    • 0034671512 scopus 로고    scopus 로고
    • To the best of our knowledge reports on the amination of aryl chlorides using immobilized Pd catalysts have been very limited, and in no case, except in ref. 6d, was information relating to Pd leaching reported. On the other hand, Lipshutz et al. reported Ni/C catalysis for the amination: Lipshutz, B. H, Ueda, H. Angew. Chem. Int. Ed. 2000, 39, 4492
    • (e) To the best of our knowledge reports on the amination of aryl chlorides using immobilized Pd catalysts have been very limited, and in no case, except in ref. 6d, was information relating to Pd leaching reported. On the other hand, Lipshutz et al. reported Ni/C catalysis for the amination: Lipshutz, B. H.; Ueda, H. Angew. Chem. Int. Ed. 2000, 39, 4492.
  • 27
    • 0037467379 scopus 로고    scopus 로고
    • Polymer incarcerated catalysts: (a) Akiyama, R.; Kobayashi, S. J. Am. Chem. Soc. 2003, 125, 3412.
    • Polymer incarcerated catalysts: (a) Akiyama, R.; Kobayashi, S. J. Am. Chem. Soc. 2003, 125, 3412.
  • 47
    • 37749034912 scopus 로고    scopus 로고
    • Microencapsulated catalysts: (a) Kobayashi, S.; Nagayama, S. J. Am. Chem. Soc. 1998, 120, 2985.
    • Microencapsulated catalysts: (a) Kobayashi, S.; Nagayama, S. J. Am. Chem. Soc. 1998, 120, 2985.
  • 53
    • 37749010287 scopus 로고    scopus 로고
    • Preparation of Copolymer 1: Styrene (2.24 g, 21.6 mmol, 2, 2-phenylallyloxy)methyl]oxirane (630 mg, 3.32 mmol, tetraethyleneglycol mono-2-phenyl-2-propenyl ether (1.03 g, 3.32 mmol, dicyclohexyl-2-[4′-(4- styrylmethoxy)phenyl]phenylphosphine (2.40 g, 4.97 mmol) and 2,2′-azobis(isobutyronitrile, 54.4 mg, 0.332 mmol) were mixed in CHCl3 (4.2 mL, The mixture was stirred at reflux for 27 h under argon and was then cooled to r.t. The resulting polymer solution was poured slowly into hot deoxygenated hexane and the precipitated polymer was collected by filtration and washed with hexane. The polymer so obtained was dissolved in CHCl3, and the resulting solution was poured slowly into MeCN. The precipitated polymer was filtered and washed with MeCN several times and dried in vacuo to afford the desired copolymer 1 (3.67 g, 58, The molar ratio of the monomer was determined by 1H NMR analysis {styrene-2, 2-phenylallyloxy)methyl
    • 2O and MeOH and was then dried in vacuo. The catalyst was reused without any other purification step.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.